Hi, I’m working with an nRF52832 DK board that’s stuck in bootloader mode—LED 5 just keeps blinking. Here’s what we’ve tried so far: Held the IF BOOT/RESET button while powering the board on. Hooked up another, working nRF52832 DK’s “Debug Out” to our board’s “Debug In” and flashed a simple blink example (it worked). Used that same setup to flash j-link-ob-sam3u128-v2-nordicsemi-170724.bin . Only once did the board show up as a J-Link when we did the first step. How can we get the board back to normal? Is it possible we’ve damaged the MCU or the J-Link interface? Thanks, Aditya P

nRF52832 DK is bricked

Hi,

I’m working with an nRF52832 DK board that’s stuck in bootloader mode—LED 5 just keeps blinking. Here’s what we’ve tried so far:

Held the IF BOOT/RESET button while powering the board on.
Hooked up another, working nRF52832 DK’s “Debug Out” to our board’s “Debug In” and flashed a simple blink example (it worked).
Used that same setup to flash j-link-ob-sam3u128-v2-nordicsemi-170724.bin.
Only once did the board show up as a J-Link when we did the first step.

How can we get the board back to normal? Is it possible we’ve damaged the MCU or the J-Link interface?

Thanks,
Aditya P